Double fertilization - Study guides, Class notes & Summaries

Biology Midterm 2 Exam Questions With Verified Answers Which of the following shows the correct base pairing of deoxyribonucleotides that occurs in nature? Select one: a. A with T b. A with U c. A with C d. A with G - answerG pairs with C A pairs with T U is found in RNA, not DNA The correct answer is: A with T According to the "semi-conservative" model of DNA replication, after a double-stranded DNA molecule is replicated Select one: a. each DNA strand of each of the two result...

Asexual reproduction is advantageous when a. the environment is unstable. b. plants are well adapted to their environment. c. there are a variety of disease agents in the environment. d. there is little competition between plants for resources. - ️️B Cross-pollination a. occurs only in gymnosperms. b. tends to increase genetic variation. c. occurs only in angiosperms. d. causes the production of sporangia. - ️️B Cross-pollination is beneficial because it a...

3 ways cowbirds find hosts - 1. sit high on perch and look around 2. walk on ground and look 3. drive birds off by scaring them so that they can lay their eggs 4 advantages of seed dispersal - -Avoids crowding competition -Prevents spread of disease -Prevents in-breeding -Saves some offspring from being eaten 5 adaptations of obligate brood parasites - 1. fast egg laying (20-40 sec for cowbirds) 2. thicker egg shells 3. fast hatching egg 4. removal of host egg prior to laying 5. baby ...

Green River College: BIOL 100 Unit 3 Notes Latest Updated Chapter 6: Energy for life Learning Objectives: 1. Identify the cellular structure where photosynthesis occurs and describe its function. 2. State the overall chemical equation for photosynthesis. 3. Recognize what is meant by the terms reduction and oxidation. 4. Describe the function of photosynthetic pigments. 5. Explain the flow of electrons in the light reactions. 6. Explain how ATP and NADPH are generated in the light reac...

Flowers - specialized structure for sexual reproduction, pollination by animals (insects, mammals, birds) and wind Seed - consists of an embryo and nutrients surrounded by a protective coat. Gametophytes of seed plants - develop within the walls of spores that are retained within tissues of the parent sporophyte The ancestors of seed plants were most likely_____, while seed plants are ________. - homosporous; heterosporous Ovule - consists of a megasporangium, megaspore, and one or more p...

HSC Biology Exam Questions And Answers Asexual reproduction Process by which a single parent reproduces by itself Sexual reproduction A reproductive process that involves two parents that combine their genetic material to produce a new organism, which differs from both parents External fertilisation The process by which the female lays eggs and the male fertilizes them once they are outside of the female Internal fertilisation fertilization of an egg by sperm that occurs insi...

PBIO Exam Question and answers rated A+ 2024 PBIO Exam Palynology and Benefits from this - correct answer Palynology: the study of pollen. Benefits: determines when agriculture originated in certain areas and who consumed it, helps solves criminal cases, meaning to native americans Pollination and Types of animals involved - correct answer Pollination: the transfer of pollen from anther to stigma Types of animals: Bees, wasps, flies, ants, butterflies, moths, birds, bats Plant strat...

Biology Midterm 2 Exam Questions With Verified Answers Which of the following shows the correct base pairing of deoxyribonucleotides that occurs in nature? Select one: a. A with T b. A with U c. A with C d. A with G - answerG pairs with C A pairs with T U is found in RNA, not DNA The correct answer is: A with T According to the "semi-conservative" model of DNA replication, after a double-stranded DNA molecule is replicated Select one: a. each DNA strand of each of the two result...

After double fertilization in a typical angiosperm, what is the ploidy level of the endosperm? triploid In angiosperms, the ovary develops into a(n) _____. fruit The receptive surface for pollination in an angiosperm flower is the _____. stigma Which part of an angiosperm flower produces haploid spores which develop into pollen grains? Anther The innermost layer of the pollen sac wall that provides nourishment for the developing microspores and microgametophytes is the ____. tapetum As the ...

HSC Biology Exam Questions And Answers Asexual reproduction Process by which a single parent reproduces by itself Sexual reproduction A reproductive process that involves two parents that combine their genetic material to produce a new organism, which differs from both parents External fertilisation The process by which the female lays eggs and the male fertilizes them once they are outside of the female Internal fertilisation fertilization of an egg by sperm that occurs insi...