The correct sentences are the following:
A) Antibiotic resistance in bacterial populations is caused by natural selection of bacteria that inherit mutations that make them resistant to the antibiotics.
C) Crossing-over causes a shuffling of allele combinations during meiosis as the alleles from each parent form new combinations on homologous chromosomes.
E) When two bacteria are linked during conjugation, the donor cell passes DNA to the recipient cell which causes genetic recombination.
Explanation:
These three options are associated with the generation and preservation of genetic diversity
The original source of all energy in a food web is the sun. the sun provides light energy that producers use in photosynthesis. animals eat the producers and other animals eat those animals. the energy flow goes up the web, but it all originated at the sun
1. a. egg album, which is a translucent fluid, changes to opaque white solid after boiling
2. b. 5-carbon sugar
3. fats, phospholipids and steroids
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As any other ancient civilization, the Sumerians were traders as well. And they had a few good reasons to do this.
Because they traded, their trading partners were less likely to attack them, because it would hurt their economy as well. Furthermore, they didn't produce everything they needed and traded those goods with goods which they produced too much of.
And lastly, through trade they could also get exotic goods which they would have never gotten otherwise.
Answer: 1. The resting membrane potential would become less negative (more positive).
Explanation:
Resting membrane potential is a voltage carried by a resting (non-signaling) neuron, or called as resting potential, across its membrane. The resting potential is determined by ion concentration gradients across the membrane, and the permeability of the membrane to each ion form.
In a resting brain, there are gradients of concentration across the Na+ and K+ membranes. Forces shift their gradients down through channels, resulting in a separation of charges that provides the potential for rest. The membrane is much more permeable to K+ than to Na+, so the resting potential is similar to K+'s potential for equilibrium.
Hence, the correct option is 1. The resting membrane potential would become less negative (more positive).
