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
zzz [600]
3 years ago
8

PLS HELP

Biology
1 answer:
KengaRu [80]3 years ago
5 0

Answer:

1. cell walls tend to be more rigid than the cell membrane

Explanation:

Cell walls are called 'walls' for a reason (:

You might be interested in
Since viruses are typically 20-200 nm in diameter, the ____ microscope is best for viewing them.
tatyana61 [14]

Electron is the best way for viewing them

3 0
3 years ago
Read 2 more answers
Cell biologist, Dr. Martine Dinen, is observing an organism's cell using a transmitting electron microscope. She notices that wi
Assoli18 [71]

The cell is most likely prokaryotic because:

Prokaryotes lack membrane-bound organelles such as the nucleus due to which the DNA are seen throughout the cytoplasm.

Eukaryotes have membrane-bound organelles such as the nucleus. So for eukaryotes, the DNA will be present packed inside the nucleus instead of being dispersed in the cytoplasm.

Prokaryotes can either be autotrophic or heterotrophic depending on their mode of nutrition. Autotrophic prokaryotes can make organic molecules for a carbon dioxide source. On the other hand, heterotrophic prokaryotes can take carbon from organic compounds. Hence, the organism can be autotrophic or heterotrophic.

6 0
3 years ago
The surge in luteinizing hormone that occurs during the middle of the ovarian cycle triggers
avanturin [10]
<h2>Ovulation   </h2>

Explanation:

In women, luteinizing hormone carries out different roles in the two halves of the menstrual cycle

  • In week one to two of the cycle, luteinizing hormone is required to stimulate the ovarian follicles in the ovary to produce the female sex hormone, oestradiol
  • Around day 14 of the cycle, a surge in  luteinizing hormone levels causes the ovarian follicle to tear and release a mature oocyte (egg) from the ovary, a process called ovulation
  • For the remainder of the cycle (weeks three to four), the remnants of the ovarian follicle forms a corpus luteum
  • Luteinizing hormone stimulates the corpus luteum to produce progesterone, which is required to support the early stages of pregnancy, if fertilization occurs
4 0
3 years ago
How does killing whales affect the food chain?
sukhopar [10]

Whales play an important role in stabilizing the aquatic food chain and reproduction of other species.

As more whales are killed the food distribution in the ocean becomes destabilized and causes changes in the food supply of many other kinds of marine life.

Whales are vital to the food chain, stabilising food flow and maintaining a healthy ocean.

As such, the rapidly decreasing whale population will have major effects on the ocean's ecosystem.

Believe it or not, whale poop also serves quite an important purpose to the ecosystem.

3 0
3 years ago
Compare the components that make up the windsurfer, his board, and his surroundings.
drek231 [11]

Answer: Sample Response: The windsurfer, his board, and the air and water around him are all made of matter. That matter is made up of very small particles called atoms.

6 0
2 years ago
Read 2 more answers
Other questions:
  • The capital letter(s) that label a rock unit (e.g., KJk) on a geologic map represents the rock unit's _____. age range rock type
    8·2 answers
  • The type of muscle fiber that is most resistant to fatigue is the ________ fiber.
    5·1 answer
  • Predator prey relationships are an example of a
    10·1 answer
  • Precipitation _____. drives the water cycle is the change from a solid to a gas happens more frequently than evaporation over la
    11·1 answer
  • How does the composition of magma determine eruptions characteristics
    13·1 answer
  • What is the name given to cell division in prokaryotes?
    7·1 answer
  • Science utilizes _______ to determine the best explanations for the natural world.
    10·2 answers
  • Which of the following is a heterotroph?<br> *cyanobacteria<br> *gopher<br> *fir tree<br> *dandelion
    13·1 answer
  • The shark still has identical skeleton to previous sharks. What other way can you prove evolution occurred if fossil evidence do
    6·1 answer
  • What do prokaryotes lack that are in eukaryote cells?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!