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
True [87]
3 years ago
7

Blood returning from the body (systemic circulation) first enters which chamber of the heart?

Biology
1 answer:
miskamm [114]3 years ago
5 0
Right atrium because
You might be interested in
What are the 7 functions of the integumentary system?
iragen [17]
Protection, sensory perception, storage, absorption, sunscreen, dilation, and constriction
8 0
3 years ago
Read 2 more answers
The endomembrane system includes ________. ribosomes, lysosomes, vacuoles, and the endoplasmic reticulum Golgi apparatus, nucleo
bearhunter [10]

Answer:

The endomembrane system includes Golgi apparatus, lysosomes, ribosomes, and the endoplasmic reticulum.

Explanation:

The endomembrane system has some very important function, but mostly it's on a charge of the internal transportation of "things" inside the cell. The system not only transports proteins or RNA or lipids, but it also transports what the cell no longer needs (waste). It starts with the endoplasmic reticulum close to the nucleus, where ribosomes are attached, so it receives molecules from inside the nucleus and also as proteins are synthesized in the ribosomes, therefore it also transports them to the next step which is the Golgi apparatus. The Golgi wraps molecules in a lipid layer and then they are taken to their final destination. Finally, lysosomes process big molecules and take them to a place in the endomembrane system so it can be treated as said before.

4 0
3 years ago
Coal was formed _________.
DedPeter [7]

Answer:

A

Explanation:

A, the guy with 1 star provided the most noneducational response I've ever seen.

4 0
3 years ago
The diagram shows a simple lipid.
Evgesh-ka [11]

The correct answer is option A, that is, saturated.

The mentioned lipid is not a phospholipid, as it does not comprise a phosphate group at the terminal of the chain, and is not a triglyceride due to the absence of glycerol moiety.

Each carbon combined with the hydrogens forms the maximum number of possible C-H bonds, thus, there are no multiple bonds between the carbons. Hence, it can be concluded that the lipid is saturated.


3 0
3 years ago
Over a period of two generations, the frequency of green dung beetles in a population shifts from 75% to 71% while the frequency
tekilochka [14]
This is an example of microevolution.

Microevolution
represents a small change in the genetic structure of the population. These changes manifest through the change in the allele frequencies of genes like in the case of dung beetles.
The causes of microevolution are evolutionary mechanisms, natural selection, genetic drift, mutations and gene flow.
5 0
3 years ago
Other questions:
  • Similarities between exothermic and endothermic
    7·1 answer
  • What is an aqueous solution
    13·2 answers
  • Sally was analyzing samples of DNA. She had DNA samples from bacteria, a whale shark, a bald eagle, and a human. Just by looking
    14·2 answers
  • What products of photosynthesis are the reactants of cell respriration?
    6·1 answer
  • Describe the characteristics of the water at the mountain source: speed temperature oxygen level and nutrient level
    12·1 answer
  • What pattern did you see repeated every year?
    14·1 answer
  • When a rehabilitation area is established at the scene of a multiple-casualty incident, it should:?
    6·1 answer
  • Which of these has the greatest density ?
    10·1 answer
  • Which kingdom would a species be classified in if it has a nucleus, cell walls and
    5·2 answers
  • Methods of excreation in plants?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!