Answer:
<em><u>H1: false, the observations of the molecules do not support the hypothesis...</u></em>
Explanation:
The cell membrane is comprised of a phospholipid bilayer, proteins, and cholesterol. These components help the membrane to maintain its selective permeability and concentration of solutes and water.
The lipid molecules have polar hydrophilic heads and hydrophobic tails. These only readily allow for the movement of small non polar molecules. Other substances, like charged ions and large molecules require transport proteins to move in and out of the cell. Hypothesis: H+ is small and should be able to move freely through the membrane, While glucose is large and cannot move freely
- Observing H+, despite being very small these cannot easily pass through the membrane. They require transport proteins called channels for their free movement or passive movement across the membrane.
- For glucose, these molecules pass through specialized channels in facilitated diffusion. They move down their concentration gradient into the cell. To move out of the cell against its concentration gradient glucose requires ATP for active transport.
- Cortisol, is a large steroid hormone, taken into the cell by simple diffusion across the lipid membrane, down its concentration gradient.
Answer:
The advantage is that it creates a new generation and furthers the growth of a species.
Explanation:
Answer:
True
Explanation:
In biology or animal behavior, the term cuckold refers to the act of invading a strange net. The term might be applied to different species that parasite other species. A very well known example is the cuckoos bird.
The Cuckold bees or cuckoo bees are many parasitic species belonging to the Apoidea taxon that characterize for invading nests of other bees.
Females lay their eggs in the cells of the host nest. Depending on the species, the intruding female might kill the owner larvae of the cell, or the emerging parasitic larvae is the one that can destroy the host using their highly developed mandibles as weapons.
As they develope, foreign larvae feed on the foodstuffs that the female owners of the nests bring for their own offspring.
This is called bipedal locomotion.
