Biology College

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which of the following makes it difficult to reach and explore the outer planets?
1. the surfaces are too icy and slippery to land on.
2. they contain a lot of helium in their atmospheres.
3. massive storms with fast winds cover the surfaces.
4. none of the above.
5. both 1 and 2
6. both 2 and 3.

Answers

Answer 1

Answer:

6 is the most prefarable

Explanation:

Related Questions

Fill in the following 1Green plant are called ___________since the synthesise their own food.

Answers

rose leaves licth leave

Assume similar data for the motion of the blood in a carotid artery which connects the aorta to the brain. Estimate how many beats of the heart it will it take the blood to get from your aorta to your brain. (Assume that the distance from your aorta to your brain is 30 cm.)

Answers

Answer:

4 beats

Explanation:

The number of beats of the heart that will take blood from Aorta to The Brain

n = Distance from Aorta to brain / distance per beat

Given that distance per beat = 7.5 cm ( calculated value outside scope of question using the data attached below)

n = 30 cm / 7.5 cm

= 4 beats

utiliza el calor producido por un reactor nuclear

Answers

Answer:

Boil water into steam

Explanation:

As the turbine blades turn, they drive generators that make electricity. Nuclear plants cool the steam back into the water in a separate structure at the power plant called a cooling tower, or they use water from ponds, rivers, or the ocean. The cooled water is then reused to produce steam.

Trace how the brain responds to stimuli through the nerves and neurons.

Answers

Answer:

The correct answer is -The brain and the spinal cord respond and sends a signal down a motor neuron to a specific sensory stimulus.

Explanation:

Sensory receptors sense the changes that take place in the environment that is called stimuli by sensory neurons that transmit the signal from the sensory receptors to the brain.

The brain and the spinal cord make the central nervous system. This coordinates a response to a specific stimulus and sends a signal down a motor neuron and send a signal to the effector by motor neurons.

If you were dropped off in the wilderness to survive for two months, what 12 things would you take with you? They must be items that would fit in a backpack.
^^

Answers

Answer:

Map & Compass. Technology can be a great tool, especially with GPS, however it's important to not solely depend on your smartphone when you're lost in the backcountry. ...

First-Aid Kit. ...

Signal Mirror. ...

Fire Starter. ...

Water Purification System. ...

Knife. ...

Cordage. ...

Fishing Line and Hooks.

Answer:

knife, lighter, flashlight, portable camp,

Explanation:

What would be the correct complimentary base pair be for a DNA strand with the following sequence...

ACGTGA

A. TGCACT
B. GGCTA
C. OTGAACT

Answers

Answer:

Explanation:

A TGCACT

The correct complementary base pair for the DNA sequence ACGTGA is TGCACT (Option A).

Deoxyribonucleic acid (DNA) is a double helix molecule composed of two long chains of nucleotides linked by hydrogen bonds.

In DNA, there are four types of nucleotides, each one containing one different nitrogenous base (i.e., Cytosine, Guanine, Adenine and Thymine).

According to the base pair rules, Adenine always pairs with Thymine, while Cytosine always pairs with Guanine.

In conclusion, the correct complementary base pair for the DNA sequence ACGTGA is TGCACT (Option A).

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https://brainly.com/question/131690

One person pushes to the left on a big rock. What are two ways a friend can apply a push or pull to help him?

Answers

Answer:

his friend can push the rock with him (on the left side) for his friend could pull (from the right side)

please help with my biology

Answers

Answer:

Negative feedback

Explanation:

Try to bring the variable (temperature) down to normal set point is negative feedback

All of the following are examples of erosion EXCEPT
O The wind in the desert blows sand against a rock.
O A glacier picks up boulders as it moves.
O A flood washes over a riverbank, and the water carries small soil particles downstream
O An icy winter causes the pavement in a road to crack

Answers

The last one is the correct answer

1. Much of the behavior of all primates is learned. Nonetheless, we have suggested many times that primate behavior has been shaped by natural selection. How can natural selection shape behaviors that are learned

Answers

Answer:

Nature selects best suited organisms having behaviours that help in the survival of organisms in that environment.

Explanation:

Natural selection can shaped the behaviors that are learned by the organisms because these behaviours helped organisms in their survival. Those organisms will be selected by the nature which can withstand the changing environmental conditions. Organisms adopt different behaviours in order to survive harsh environmental condition and these behaviour shaped by the natural selection in that organism so that they survive and grow in that environment.

Plz help me well mark brainliest if correct!!!

Answers

A, just like his last name

The answer is A. When he was 15, he invented a universal system for reading and writing to be used by people who are blind or visually impaired that now bears his name.

During frog gastrulation, involution occurs at the Group of answer choices endometrium. blastopore blastocoel. trophoblast. archenteron.

Answers

Answer:

blastopore

Explanation:

Involution is the second stage after invagination during frog gastrulation. Involution occurs at the blastopore when the marginal zone cells get to the tip of the blastopore, make an inward turn and then move along the inner exterior of the outer cells sheets.

This means that the cells found at the lip of the blastopore and always undergoing change and the first of these cells to develop into the dorsal lip are the endodermal cells. Next are the mesoderm cells that form the Notochord.

The flow of genetic information is controlled by a series of biochemical reactions that result in the production of proteins, each with its own specific order of amino acids. Choose the series of biochemical reactions in the correct order from the options presented here.
(a) replication, transcription, translation.
(b) replication, translation, transcription.
(c) translation, transcription, replication.
(d) translation, replication, transcription.

Answers

Answer:

Explanation:

As with DNA replication, partial unwinding of the double helix must occur before transcription can take place, and it is the RNA polymerase enzymes that catalyze this process. ... The DNA molecule re-winds to re-form the double helix. In the first step, transcription, the code in the DNA is copied to a different nucleic acid, RNA. In the second step, translation, the nucleic acid code in RNA is changed into a new form: amino acids. This step is called translation because the nucleic acid language is being "translated" into the protein language.

g About how much of the energy in the producers of an ecosystem will be available to secondary consumers in this ecosystem

Answers

Answer:

10 %.

Explanation:

Only 10 % of energy in the producers of an ecosystem will be available to secondary consumers of that ecosystem while the remaining 90 % will be lost and releases in the atmosphere in the form of heat energy. In each trophic level, only 10 % of the total biomass is transferred from one trophic level to another trophic level while the remaining biomass is released in the form of heat. If the producers has 1000 calories of energy, only 100 calories will be transferred to the primary consumer.

name the type of coordinated response that takes place as a result of a specific stimulus, such as the withdrawal of the hand from a hot object touching the skin

Answers

Answer:

The correct answer is - reflex response.

Explanation:

If an individual touch something hot accidentally and immediate removal of the hand takes place, this occurs involuntarily. This type of coordination reaction called reflex action. Reflex action is an involuntary response that takes place due to a specific stimulus.

These stimuli result in an unplanned sequence of action or movement. Removing hand in response of contact to a hot object, change of the pupil of the eyes in response of light, coughing in response of some irritants in nassal passage and others. The reflex arch is the pathway they follow to carry out reflex action.

* Identify the organelle that makes energy for the cell

O Nucibus

O Mitochondria

O Golgi Apparatus

O Cell Membrane

Answers

Answer:

O Mitochondria

Explanation:

Answer:

Explanation:

The mitochondrion (plural mitochondria) is a membrane-bound organelle found in the cytoplasm of eukaryotic cells. It is the power house of the cell

What is described: Retinitis Pigmentosa is a genetically inherited eye disease that only men get
A- incomplete dominance
B- basic dominance/mendelian inheritance
C- co-dominance
D- sex-linked
E- multiple alleles

Answers

Answer:

Explanation:

Answer:

The answer for this question is that sex-linked.

PLS HELP ME

What is the % phenotype for this cross if round is the dominant trait?

A. 25% round, 75% wrinkled

B. 50% round, 50% wrinkled

C. 75% round, 25% wrinkled

D. 100%, round, 0% wrinkled

Answers

Answer:

100% Heterozygous Dominant (Rr)

Hope this helps!

1
Correct
How is a scientific law different from a scientific theory?
A.
A theory becomes a law after a long period of time has passed.
B.
A theory is why something happens and a law is how something happens.
C.
A theory cannot be disproved but a law can be disproved.
D.
A theory is used for biology and chemistry and a law is used for physics.
Next

Answers

The correct answer is B. A theory is why something happens and a law is how something happens.

Explanation

A scientific theory is a way of describing why chemical and physical phenomena originate. An example of this can be the theory of Charles Darwin on the Evolution of species. In this theory, Darwin set out to explain why the evolution of species and what influenced this development. On the other hand, a scientific law is a description of how some of the phenomena of nature occur. For example, Isaac Newton's Law of Universal Gravitation was intended to describe the gravity. From the above, it can be inferred that the correct answer is B. A theory is why something happens and a law is how something happens.

What are the applications of CRISPR/Cas9-mediated Epigenetic Editing?

The CRISPR/Cas9 with the advantages of low cost and ease of use gives researchers the opportunity to manipulate the epigenome and observe its possible effects on cell function, development, and differentiation (Figure 1). Using non-active dCas9 (another type of Cas9 lacking nuclease activity but retaining DNA binding activity) fused enzymes such as DNA methylase, histone acetyltransferase, and deacetylase can be targeted to alter the epigenetic state of precise locations within the genome.

https://www.creative-biogene.com/crispr-cas9/solution/crispr-cas9-mediated-epigenetic-editing.html

Answers

Answer:

Applications:

- silence gene expression of target genes

- activate gene expression of target genes

- determine the role of DNA methylation and histone modifications (methylation, acetylation, etc) on specific regulatory sites (e.g., enhancer sequences)

Explanation:

The CRISPR/Cas9 system can be repurposed to edit the epigenome of living cells. For this purpose, it is required 1-to fuse a catalytically inactive 'dead' Cas9 enzyme with enzymes involved in epigenetic mechanisms (e.g., DNA methyltransferases, histone deacetylases, etc) capable of activating or deactivating gene expression, and 2-to design single-guide RNAs (sgRNAs) complementary to the sequence of interest (i.e., target sequences whose epigenome landscape we are trying to modify). For example, dCas9 gene has been fused with the DNA methyltransferase 3a (Dnmt3a) gene to create a dCas9-DNMT3A complex which can be combined with a specific sgRNA in order to study the effects of DNA methylation at a particular gene. These CRISPR/Cas9-mediated epigenome editing systems have shown to be very useful to understand how epigenome drives chromatin folding and dynamics at specific genomic sites (loci), and thus regulate gene expression at the transcriptional level.

What are the long cells called Tracheids

Answers

Tracheid is a long, lignin cell in the xylem of tracheophyta. Tracheid first named after the German botanist Carl Gustav Sanio in 1863. Used from deutsch Tracheide. There are often pit (also known as pupils or guide holes) or decoratives on the cell walls of tube cells.

Which of the following qualify as germs? Select all that apply.

A. Bacteria
B. Fungi
C. Protozoa
D. Viruses

Answers

The answer would be A

Bacteria is the answer

True or false: If we extracted DNA from thyroid and neural tissues, we would find the CALCA gene in both types of cells.

Answers

Answer:

True

Explanation:

The calcitonin/calcitonin gene-related peptide (CALCA) gene is used to encode different peptide sequences (i.e., calcitonin hormone, calcitonin-related peptides and katacalcin) through alternative RNA splicing. These peptides have different functions. Calcitonin is a hormone mainly produced by cells of the thyroid gland, which is involved in the control of levels of calcium and phosphate in the blood. Moreover, katacalcin is a peptide synthesized from the same precursor of calcitonin (and therefore also mainly produced by cells of the thyroid gland), which is implicated in both calcium regulation and skeletal maintenance. Finally, the calcitonin gene-related peptide (CGRP) is a peptide mainly produced by sensory nerves (type Aδ fibers ), which is involved in pain pathways. The CALCA gene has attracted considerable attention from geneticists because it is specifically expressed in neuroendocrine tissues in normal conditions and abnormally induced in septic conditions (i.e., during the body's extreme response to an infection).

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