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
vampirchik [111]
3 years ago
8

Crossing-over can occur during meiosis I in:

Biology
2 answers:
juin [17]3 years ago
8 0
I’m pretty sure it’s A) prophase I
m_a_m_a [10]3 years ago
3 0

Answer:

b. metaphase l.

You might be interested in
PLEASE HELP ME
musickatia [10]
<span>When practicing birth control as natural family planning, it is not true that it is almost 100 percent effective. Birth control as natural family planning does require careful tracking of the menstrual cycle, demands focus on bodily changes, and does require women from having sex on days ovulating and following. Even if sex is is had outside ovulating days, it is possible to get pregnant, thus it is not 100 percent effective.</span>
3 0
3 years ago
How are gasses exchanged in the alveoli
Vaselesa [24]

Answer:

The alveolar walls and capillary walls share a membrane. That's how close they're getting. This allows oxygen and carbon dioxide to readily pass from the respiratory system to the circulation. Oxygen molecules bind to red blood cells as they return to the heart.

4 0
3 years ago
Organisms that break down organic matter
jeyben [28]
Decomposers do.

i wish that helped you
8 0
3 years ago
Which of the following foods will digest most completely in this system?
SashulF [63]
Corn is always in your
Poop
3 0
3 years ago
Turgor pressure is the pressure exerted on a plant cell wall by water. When wilted plants are placed in water, they demonstrate
Rus_ich [418]

Answer: When wilted plants are given water, it enters the cell generating turgor and giving a firmer appearance, and this water is stored in the vacuoles.

Explanation:

Turgor is a phenomenon in plant cells in which the cell expands due to the pressure exerted by the fluids and also by the cell content on the walls. It is related to osmosis, since the external pressure is usually very high and this internal pressure dilates the cell as much as the elasticity of the membranes allows. <u>Then, the cells swell by absorbing water, tensing the membranes because of the pressure against them.</u> When the fluid exerts outward pressure on the cell wall it is called turgor pressure.  Whereas, the inward pressure exerted on the cell contents by the stretched cell wall is called wall pressure. Generally, both pressures, turgor pressure and wall pressure, are counterbalanced and balanced.

So, this pressure of turgor facilitates the elongation of the cells in the plant, and also, the cells use this phenomenon to regulate the transpiration through the opening and closing of the stomach.

Thereby, the turgor of a living cell is influenced by three primary factors:

  • An adequate supply of water.
  • The formation of osmotically substances.
  • A semi-permeable membrane.

Vacuoles are organelles bounded by a single membrane and present in plant and fungal cells, and where water is stored. Plant cells control their turgor pressure through the movement of water into or out of vacuoles. When wilted plants are given water, it enters the cell generating turgor and giving a firmer appearance, and this water is stored in the vacuoles.

3 0
3 years ago
Other questions:
  • A cuboidal cell and a spherical cell have the same surface area to volume ratio, but the cuboidal cell has a greater volume than
    12·1 answer
  • From memory, list the characteristics of life.
    10·2 answers
  • Chapter 8 Section 1: How Organisms Obtain Energy​
    11·2 answers
  • Fertile hyphae that bear spores are called _____. conidiophores sporangium gametophytes isogametes
    13·2 answers
  • What happens to any matter that is not used by consumers in a food chain?
    9·2 answers
  • Organisms use different types of adaptations to aid in their survival.Which of the following is an adaptation that would not hel
    7·2 answers
  • Deep-ocean lantern fish have special organs that use chemical energy to produce light. However, the light can only travel a cert
    10·2 answers
  • describe the different roles in an ecosystem by what an organism eats and its relationship to the other organism​
    10·1 answer
  • Traits that are determined by more than one gene are called what?
    7·1 answer
  • Plz help
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!