1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
irina [24]
3 years ago
7

Which of the following events occurred during the first trimester?

Biology
1 answer:
klasskru [66]3 years ago
5 0
I believe that the answer to your question would be A. Heart Begins.
You might be interested in
1. Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomenclature? ​
jeka94

»» (c) Biological names can be written in any language.

<h3>EXPLANATION:</h3>

➱ Biological names are derived either from Latin language or are latinised. This is because Latin language is a dead language and therefore it will not change in form or spellings with the passage of time.

3 0
3 years ago
Why does a hormone only act on specific cell types in an organism and not others?
Vilka [71]

Answer:

c) A cell must have the appropriate receptor before it can bind to the hormone.

Explanation:

Hormones are chemical signals that are secreted into the circulatory system acting as regulators within the body, and even though they can reach any part on the body, <em>only certain types of cells are equipped to respond, these cells are known as target cells, when the hormone reaches a cell with an adequate receptors it triggers a signal transduction and then a response.</em>

Therefore the correct answer is c.

I hope you find this information useful and interesting! Good luck!

5 0
3 years ago
If the force exerted on a sled is 100 N and the mass of the sled is 50 kg, what is the acceleration of the sled?
Anna35 [415]
<h3><u>Answer;</u></h3>

acceleration= 2 m/s²

<h3><u>Explanation;</u></h3>

From the second Newton's Law of motion the resultant force is directly proportional to the rate of change in momentum.

That is;

F = ma

Thus; F = 100 N, m = 50 kg

a = F/m

  = 100/50

  = 2 m/s²

8 0
3 years ago
Which of the following distinguishes secondary roots?
IRISSAK [1]

Answer:

Secondary roots are thin and spread outward.

Explanation:

3 0
3 years ago
What is the name of the hollow muscular organ that holds urine
jeka94
The bladder is the muscular organ that holds urine 
4 0
3 years ago
Other questions:
  • What type of venom does a cottonmouth have
    15·1 answer
  • How do you make metric measurement
    12·1 answer
  • Use the drop-down menu to complete the sentence. When 1 carbon atom combines with 2 oxygen atoms, the resulting substance is cal
    15·2 answers
  • What is the unit of pressure?why is it call derived unit ?give reason​
    11·1 answer
  • 12. Mechanical energy that travels through matter in waves causing molecules to vibrate is
    15·1 answer
  • Select from the following list of statements all of the ways in which meiosis II differs from meiosis I. Check All That Apply In
    15·1 answer
  • The other liquid waste product in cellular respiration is
    11·2 answers
  • Explain how Punnett squares are used to describe the
    9·2 answers
  • Which of the following is an example of asexual reproduction? Check all that apply.
    8·1 answer
  • List and briefly describe each of the 4 types of evidence that support evolution
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!